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8.3 Identification of ions by chemical and spectroscopic means

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Question 23
H

A student adds dilute hydrochloric acid and then silver nitrate solution to a solution of potassium iodide. A white precipitate forms. What is the best explanation?

[1]
A

The solution contains iodide ions and chloride ions

B

The chloride ions in the acid have formed silver chloride

C

The hydrochloric acid has reacted with the silver nitrate

D

The iodide ions have been oxidised by the acid added

Markscheme

8.3 Identification of ions by chemical and spectroscopic means Questions

  1. GCSE
  2. /Chemistry
  3. /8.3 Identification of ions by chemical and spectroscopic means

40 exam-style questions on AQA GCSE Chemistry 8.3 Identification of ions by chemical and spectroscopic means, covering 8.3.1 Flame tests, 8.3.2 Metal hydroxides, 8.3.3 Carbonates, 8.3.4 Halides, 8.3.5 Sulfates, 8.3.6 Instrumental methods, and 8.3.7 Flame emission spectroscopy. Each one has a worked solution and a mark scheme showing where the marks go.

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